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GPS spoofing attack characterization and detection in smart grids

机译:智能电网中的GPS欺骗攻击特征与检测

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The problem of global positioning system (GPS) spoofing attacks on smart grids endowed with phasor measurement units (PMUs) is addressed, taking into account the dynamical behavior of the states of the system. First, it is shown how GPS spoofing introduces a timing synchronization error in the phasor readings recorded by the PMUs and alters the measurement matrix of the dynamical model. Then, a generalized likelihood ratio-based hypotheses testing procedure is devised to detect changes in the measurement matrix when the system is subjected to a spoofing attack. Monte Carlo simulations are performed on the 9-bus, 3-machine test grid to demonstrate the implication of the spoofing attack on dynamic state estimation and to analyze the performance of the proposed hypotheses test.
机译:考虑到系统状态的动态行为,解决了对具有相量测量单元(PMU)的智能电网进行全球定位系统(GPS)欺骗攻击的问题。首先,它显示了GPS欺骗如何在PMU记录的相量读数中引入定时同步误差,以及如何改变动态模型的测量矩阵。然后,设计了一种基于广义似然比的假设测试程序,以在系统遭受欺骗攻击时检测测量矩阵中的变化。在9总线3机测试网格上进行了蒙特卡洛模拟,以证明欺骗攻击对动态状态估计的影响并分析所提出的假设测试的性能。

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